I have Vegas+DVD on order. I am using DVD Architect Demo currently. If I directly preview MPEG files they play fine. If I link them in a menu and play preview of the DVD I get a slight freeze in video about every 3 seconds no matter what preview quality I select. AVI files preview fine. If I preview the same MPEG files in DVD Workshop they preview smoothly. I hope this will not be a problem when I finally get the full VEGAS+DVD version. Has anyone else had this same problem. Thanks Wobbly Boy